About Smiths

We are a world-class supplier of engineering raw materials. Our objective is to provide all our customers, from the small machine shop to the large multi-national corporation, a supply path that continuously delivers the highest levels of service, quality and value.


Engineering Plastic

PVDF & ECTFE Engineering Plastic

High-Performance Fluoropolymer Plastics


PVDF is a high-quality fluoropolymer material (chemical name is polyvinylidene fluoride. When compared to PTFE, the material offers higher strength, pressure resistance and dimensional stability.

ECTFE (Halar®)

ECTFE is a very pure fluoropolymer material (chemical name is ethylen-chlortrifluorethylene) with excellent corrosion and weather resistance, outstanding fire-safe properties and smooth surface. ECTFE also has permeation resistance to oxygen, carbon dioxide, chlorine gas and hydrochloric acid that is 10 to 100 times better than PTFE.


The machining of polypropylene is uncomplicated, provided the component tolerances allow for polypropylene’s relatively high coefficient of thermal expansion and tensile elongation values. Full machining instructions are available on request, and we offer in-house processing to cut your materials to size.

Typical Applications

Commercial applications for this engineering material include:

  • Gaskets
  • Seals
  • Pump components
  • Gears
  • Valve components
  • Tank linings
  • Pipe fittings
  • Semiconductors

We stock PVDF & ECTFE in round tube and hollow bar.

Technical Assistance

Our knowledgeable staff and resident metallurgists will be pleased to assist you further on any technical topic. Smiths Metal Centres Limited also boasts an in-house UKAS Accredited Testing Laboratory which is unique within the multi-metal and plastic stockholding sector. We believe this underlines our total commitment to quality and our ethos of being the complete service provider.

Additional Info

A technical datasheet for PVDF & ECTFE is available in PDF file format. To view and download, please click here.

We offer in-house processing options - for more information, please refer to our processing services.

Read our corporate brochure by clicking here.

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